Peters



2 Sheets-Sheet 1.

(No Model.)

STEEL, BEARING FOR ROLLING'MILLS;

Patented Apr 1, 1884.

m-JM

N, PETERS. P'nuh-Lhhngmphcr. Washington, a, cl

j UE'rrEE STATES *EPA'iENr @rrrcn.

WALTERSTEEL, on wEs'r BERGEN, n w JERSEY, ASSIGNOR TO SPAULDING,

Jnnninosaoo, or SAME PLAo BEARING FOR ROLLING- MILLSL srncrrrcnrron forming part of Letters Patent No.'296,081, dated April 1, 1884.

Application filed SepLember4,-1883. (No model.)

Toall whom it may concern:

Be it known that LRVVALTER STEEL, of West Bergen, in the county of Hudson andState of New Jersey, have. invented an Improvement in Bearings for Rolling-Mills, of which the following is a specification.

In rolling-mills for bar-iron and other forms of metal itisusual to provide three rolls, in order that the metal may be rolled through in one direction between the upper roller and the middle roller, and in the other direction between the middle and. lower rollers. To regulatethe distance between the respective rollers it is usual tointroduce sheet-metal fillingpieces between the topof one journal-box and the bottom of the next above it; This renders it difficult to obtain any very delicate adjustments,and these filling-plates are I not easily introduced or removed, and frequently iron scales and other foreign matter intervene between the filling-plate and the bearing. Wedges have been used beneath the lower j ournal-box, and also pairs of wedges between the respective boxes. These are expensive and difficult to adjust. My invention is made for the purpose of facilitating the adjustment of the bearings of the boxes and for rendering the parts strong, rigid, and durable.

In the drawings, Figure 1 is an elevation of the inner side of the frame endwise of the journals, and partially in section. Fig. .2 is a section at the line 00 m. Fig. 3 is a horizontal section at the line 3 11 and Fig. 4: is a section showing a modification in the screws that act upon the wedges. I I

I The rolls are shown by dotted lines, as three in number, and marked A B G, and there are two end frames, 1). Only one, however, is shown. The roller A is provided with the shafts or journals a, the rollers B with shafts or journals 1), and the roller 0 with shafts or journals 0. The bearing-block E rests on the bottom part of the frame D, and it is provided with the j ournal-box of brass or similar metal, as usual. The cap -blocl: F is also provided with thebrassbox, and rests upon the journal a. The bearingblock G, as ordinarily fitted, rests directly upon thecap-block F, except where there are one or more filling-blanks of sheet metal introduced between them, for the purpose of increasing ing-block G, and there is acap-block, 1K, and 5 5 cross-bearer for the screw L, that confines all the j 0urnal=boxes firmly together. These parts, so far as stated, are known and in use. There are also screws at 11, passing through the fllanged edges of the frame D and resting against steel plates introduced into the surfaces of the bearing-blocks and caps, respectively, so that the journal-boxes can be kept up closely against the collars on the respective j ournals or against the ends of the rollers and prevent any looseness or end-play of the respective rollers.

In order to adjust the distance between the cap-block F and the bearing-block G, I make use of a wedge, R, introduced between the respective parts. The under side of the bearing block G, or the upper side of the cap-block F, or preferably both surfaces, are at an inclination corresponding to the inclination of the surfaces of the wedge R, and it is preferable to make the inclined upper part of F and 7 the lower part of G, between the ribs 3 3 4 4, that form the lower and upper edges, respectively, of the blocks F G, so that the wedge B will be partially incased. It, however, is free to be moved endwise, and if moved in one direction it will raise the bearing-block G, so as to compensate for wear of either the journals or boxes, or for increasing the distance between the roller B and the roller A. If

moved in the other direction, the distance between A and B will be lessened. The extent of this adjustment is comparatively little, and it can bemade with the greatest delicacy by the wedge; but it is necessary that the wedge be held firmly so that it cannot move endwise when the rolling-mill is in use. To effect this I employ screws that pass through the frames D. I prefer to use screws S T, attached to the ends of the wedge itself, and passing through slots or mortises in the frame D, and provided 5 with nuts 12 w. If the nut 10 is loosened and the-nut o screwed up, the wedgerR will be moved endwise and the block G and roller B willbe raised. If the nut o is loosened and the nut 3.0 screwed up, the roller B will be IOO lowered. By this improvement the most delicate adjustment can be obtained between the rollers A B, and that with great rapidity. There are no looseparts, and the filling-pieces of sheet metal heretofore used are dispensed with. The wedge B is interposed between the cap-block H and the bearing-block I, the under surface of I and upper surface of H being made so as to receive such wedge as aforesaid, and the screws S T are provided with nuts wv, and, the endwise movement given to the wedge B adjusts the bearing-block I so as to compensate wear or to raise or lower the roller 0 in its relation to the roller B.

It is to be understood that the screw L'is to be slackened previous to adjusting the wedges R R, and that the screws S T- S T, when their nuts are loose, can rise or fall bodily with the other parts, because the openings in the frame D through which the said screws pass are either elliptical holes or mortises, so that the screws which project from the ends of the wedges and pass through the frame will not be bent by the raising or lowering of the block upon which the wedge rests, nor by the rising or falling of the wedge itself, when moved endwise up or down the inclined surface which forms the bearing upon which it rests. The nuts 10 w" or v 12 should be loose during the adj ustmentvertically of the blocks or bearings, and they should be carefully.

screwed up against the edge of the frame D after the screw L has been tightened to hold the parts firmly together.

If this improvement is used in rolling-mills where only two rollers, A B, are used, the bearing'blocks H I and wedge It will not be required. The screw-bolts S S might be dispensed with, as the wedges cannot move backwardly if held by the screw-bolts T T, and they cannot move forward after pressure is applied to all the boxes by the screw L.

In Fig. 4 I have represented the screws S T as passing through nuts 0 19, that are received into recesses cast in the inner edges of the frame, so that end motion is given to the wedge either one way or the other by revolving the screws in the nuts 0 p. the nutsv and w simply act as lock-nuts to prevent the screws working loose.

In'rolling-mills, especially for steel, the bear- In this arrangement I ings are liablev to yield and fail to hold the rolls in their proper relative positions. The filling-plates that have been used serve to keep the journals and rollers in their proper relative positions, except when the strain comes on the parts during the rolling operations. The same is true where two wedges, standing in opposite directions, are employed between the respective boxes; but under all circumstances it is found practically impossible to keep a number of surfaces absolutely in contact; hence, when the strain comes upon the rollers, the boxes yield where there are two wedges or a number of filling-plates, and the rolling operation becomes imperfect. By my improvement I am able to reduce the contact surfaces to a minimum, becausethere is only one wedge between the cap-block and bearing-block, and hence only two surface-contacts, and at the same time the adjustment can be made with the greatest accuracy.

I claim as my invention- -1. The combination, with the rolls A B and their journals or shafts ab,bearing-blocks E G, and cap-blocks F H, of the wedgeR, introduced between the cap F and block G, the surfaces being inclined, so that the block G will be raised or lowered by an endwise move ment of the wedge B, substantially as and for the purposes set forth.

2. The cap-block F, having an inclined upper surface, with ribs 3 3, in combination with the bearing-block G, with ribs 4 4, and the wedge R introduced between said blocks, and the rolls and end frames and screws for moving the wedges endwise and holding the same, substantially as set forth.

3. In combination with the rolls A B Cand their j ournals ab 0, the end frames, D, the bearing-blocks E G I, and cap-blocks F H K, with the ribs upon the respective edges of the blocks F G H I, the single wedge R between the blocks F G, and the single wedge R between the blocks HI, and the screws for movingand holding the wedges, substantially as set forth.

Signed by me this 1st day of September,

WALTER STEEL. Witnesses:

GEO.YT. PrNcKNEY, WILLIAM G. Morr. 

